Wire-clamp.



G. M. ANDERSON.

WIRE CLAMP.

APPLIUATIOH I'ILBD JUNE 13, 1911.

1,023,706. Patented Apr. 16, 1912.

INVENTOR ATTORNEYS GEORGE M. ANDERSON, OF GORDON, NEBRASKA.

WIRE-CLAMP.

Specification of Letters Patent.

Patented Apr. 16, 1912.

Application filed June 13, 19 11. Serial No. 632,859.

To all whom it may concern:

Be it known that I, GEORGE M. ANDERSON, a citizen of the United States, and a resi dent of Gordon, in the county of Sheridan,

State of Nebraska, have invented a new and 1 of a simple, cheap and eflicient device of the character specified especially adapted for use with the wire stretcher shown and described in my co-pending application, Serial No. 621,219, filed April 15, 1911 and designed for firmly gripping the wire without any possibility of accidental release, yet so arranged that the wire may be quickly and easily released when desired.

In the drawings; Figure 1 is a perspective View of the improvement; Fig. 2 is an enlarged longitudinal section; Fig. 3 is an enlarged plan view; Figs. 4 and 5 are sections on the lines 4-4 of Fig. 2 and 5-5 of Fig. 3; Fig. 6 is a perspective view of a modified form.

The embodiment of the invention shown in Figs. 1 to l comprises a tapering bar 24, polygonal in cross section, and provided on each of two adjacent faces with a longitudinal series 25 of ratchet teeth. The teeth of each of the series face toward the small end of the bar, and the corners of the bar between the series are preferably rounded, as indicated at 26. One of the plain faces 27, that is, a face having no teeth, is also preferably rounded, as shown more particularly in Fig. 4. The other plain face 27 is flattened, but is not provided with teeth. The teeth are designed to engage the wire in a manner to be presently described, and, as it may at some time be desirable to avoid any marring or scarring of the wire, a plain gripping face is provided, that is, the face 27. A split ring 28 is slidable on the bar, and the face 27 is rounded to fit the interior of the ring smoothly. The ring is provided at the end adjacent to the large end of the bar with a marginal rib or flange 29, which is rounded, and forms a gripping surface or hand hold to operate the ring. The rib also strengthens the ring and prevents any liability of spreading. The split 30 of the ring is at the face 27, and the ring is of suliicient thickness to firmly hold the wire. The ring has some resiliency, but notenough to permit of any springing or slipping of the same on the bar. At the small end of the bar an integral ring 31 is provided. for the attachment of a chain or the like (not shown) to permit the clamp to be secured to the stretcher or other device with which it is used. A knob is provided at the opposite side of the ring from the bar, and the said knob is designed for engagement by a hammer or the like to loosen the ring when the wire is to be released.

In the embodiment shown in Fig. 6 the small end of the bar is provided with a knob 34 corresponding to the knob 32 of the bar 24, and adjacent to the knob the bar is provided with an eye 35, for the attachment of a chain 36, the eye 35 corresponding to the ring 31.

In operation, the improved clamp is on gaged with the wire 37 by sliding the ring 28 toward the small end of the bar and laying the end of the wire on one of the gripping faces, either one, provided with teeth, or the plain gripping face, as may be desired. The wire may be inserted through the split 30 of the ring. The ring 28 is then pushed toward the large end of the bar until the wire is firmly gripped between the ring and the teeth or between the ring and the plain face. It will be evident that the greater the strain on the wire, the more tightly it will be gripped, since the ring is pulled with the wire toward the large end of the bar. The wire is released by sliding the ring 28 toward the small end of the bar, and if the ring is diflicult to move the knob 32 or 34, as the case may be, may be struck with a hammer or stone to loosen the ring.

The device is inexpensive, very durable, and hardly likely to get out of order. The ring 31 or 34 is of sufficient size to prevent the slipping of ring 28 thcreover, and the large end of the bar is also large enough to prevent the disengagement of the ring 28. The ring 28 is thus always in place, and when the clamps are attached to a wire stretcher by a chain or the like there is no liability of any of the parts becoming separated and lost. It will be noticed that the bore of the ring 28 is tapering to correspond with the taper of the bar.

I claim:

A wire clamp, comprising a bar increasing gradually in cross section from one end to the other, said bar having a plurality of longitudinally extending flattened surfaces, port, said ring being of smaller diameter sundry of said surfaces being PIOVIdOd with than the large end of the bar to prevent the teeth facing toward the small end of the ring moving over the said end.

her, a ring Slidable 0n the bar and coiiperat- GEORGE BI. ANDERSON. 5 111g wlth the flattened surfaces to grip a Witnesses:

wire, stud bar having means at its small end OTTO PFEIFFER,

for permitting it to be attached to a sup- R. B. SAILOR.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

